摘要:
A power-supply unit includes a high-voltage source that generates a high voltage between a positive electrode and a negative electrode, a smoothing capacitor connected between the positive electrode and the negative electrode, a discharge portion that includes a resistor and a first switching device connected in series with each other, and is connected between the positive electrode and the negative electrode, and a discharge control portion that controls the first switching device to one of an ON state and an OFF state. When an abnormal condition in which current flows through the resistor is detected while the discharge portion controls the first switching device so as to keep the first switching device in the OFF state, the high-voltage source is controlled so as to keep generating a given high voltage for fusing the resistor.
摘要:
The objective of the present invention is to provide a swivel chassis in which the angle of the mounted device can be freely varied vertically and horizontally and in which a sufficient level of holding strength is assured so that the desired angle is not subject to change with vibration and the weight of the mounted device. To achieve this objective, the swivel chassis main unit comprises a base and a hemispherical raised portion with spherical surfaces formed on the inside and outside, and an inclination restricting hole formed at its center.
摘要:
The invention provides a dispersion of particles of rutile titanium oxide wherein the particles of rutile titanium oxide have a D50 in a range of 1 to 15 nm and a D90 of 40 nm or less in particle size distribution as determined by a dynamic light scattering method; a specific surface area in a range of 120 to 180 m2/g as determined by a BET method; and a rate of weight loss of 5% or less as obtained by heating the particles of rutile titanium oxide from 105° C. to 900° C.Such a dispersion of particles of rutile titanium oxide is obtained by a process according to the invention, which comprises: a first step in which an aqueous titanium tetrachloride solution is heated and hydrolyzed to obtain a slurry containing the precipitated particles of rutile titanium oxide; a second step in which the slurry obtained in the first step is filtered and washed with water to remove water-soluble salts dissolved therein from the slurry; a third step in which the slurry obtained in the second step is subjected to a hydrothermal reaction in the presence of an organic acid; a fourth step in which the slurry obtained in the third step is filtered and washed with water; a fifth step in which an acid is added to the slurry obtained in the fourth step, and the resulting mixture is subjected to a wet dispersion treatment, thereby obtaining a dispersion; and a sixth step in which excess acid and water-soluble salts are removed from the dispersion obtained in the fifth step.
摘要:
The invention provides a process for producing an aqueous dispersion of particles of rutile titanium oxide, which comprises: a first step in which after a chloride ion concentration of an aqueous solution of titanium tetrachloride is adjusted to 0.5 mole/L or more and less than 4.4 mole/L, the aqueous solution of titanium tetrachloride is heated at a temperature in a range of from 25° C. to 75° C. to hydrolyze the titanium tetrachloride, thereby obtaining a slurry containing the thus precipitated particles of rutile titanium oxide; a second step in which the slurry obtained in the first step is filtered and washed with water to remove water-soluble salts dissolved therein from the slurry; a third step in which the slurry obtained in the second step is subjected to a hydrothermal reaction in the presence of an organic acid; a fourth step in which the slurry obtained in the third step is filtered and washed with water to remove water-soluble salts dissolved therein from the slurry; a fifth step in which an acid is added to the slurry obtained in the fourth step to deflocculate the slurry, and the resulting slurry is subjected to wet dispersion treatment, thereby obtaining a dispersion; and a sixth step in which excess acid and water-soluble salts are removed from the dispersion obtained in the fifth step.
摘要:
An open deck type cylinder block (10) that is one embodiment of the present invention is configured as follows. A shallow portion (21) and a deep portion (22) are provided in a water jacket (20). The shallow portion (21) is provided in a portion that is comparatively far from a head bolt hole (17), while on the other hand the deep portion (22) is provided in a portion that is comparatively close to the head bolt hole (17). A hollow portion (18) in which a block outer wall is hollowed toward a cylinder center side is provided between a bottom wall portion of the shallow portion (21) and a skirt portion (14) used as a crank case.
摘要:
An open deck type cylinder block (10) that is one embodiment of the present invention is configured as follows. A shallow portion (21) and a deep portion (22) are provided in a water jacket (20). The shallow portion (21) is provided in a portion that is comparatively far from a head bolt hole (17), while on the other hand the deep portion (22) is provided in a portion that is comparatively close to the head bolt hole (17). A hollow portion (18) in which a block outer wall is hollowed toward a cylinder center side is provided between a bottom wall portion of the shallow portion (21) and a skirt portion (14) used as a crank case.
摘要:
To image not only the user in front of a camera but also documents situated below, a rail member is vertically attached to a sidewall of a display case, a slide rod fixing clamp is slidably mounted on the rail member, a slide rod is transversely displaceably mounted on the slide rod fixing clamp, an orthogonal rod is secured to slide rod, and a camera mounting clamp is mounted on the orthogonal rod in such a manner that it is rotatable around the orthogonal rod. Thus, a camera can be positioned lower than in the instance where it is disposed on top of a display. Also, the camera can be directed downward by virtue of the camera mounting clamp.
摘要:
An internal combustion engine includes: a cylinder block having a block cooling water passage that supplies cooling water to a plurality of cylinder bores, and an inter-bore cooling water passage provided between cylinder bores that supplies cooling water between the cylinder bores; a cylinder head having a first cooling water passage to which cooling water is supplied from the block cooling water passage, and a second cooling water passage, which is provided independently from the first cooling water passage, and to which cooling water is supplied from the inter-bore cooling water passage; a heat exchanger; a first cooling water introducing part that leads cooling water, which is flown out from the first cooling water passage, to the heat exchanger; and a second cooling water introducing part that leads cooling water, which is flown out from the second cooling water passage, to a downstream side of the heat exchanger.